internal static LDRColour InterpolateRGB(LDRColour lDRColour1, LDRColour lDRColour2, int wc, int wcPrec)
{
LDRColour temp = new LDRColour();
int[] weights;
switch (wcPrec)
{
case 2:
weights = AWeights2;
break;
case 3:
weights = AWeights3;
break;
case 4:
weights = AWeights4;
break;
default:
return(temp);
}
temp.R = (lDRColour1.R * (BC67_WEIGHT_MAX - weights[wc]) + lDRColour2.R * weights[wc] + BC67_WEIGHT_ROUND) >> BC67_WEIGHT_SHIFT;
temp.G = (lDRColour1.G * (BC67_WEIGHT_MAX - weights[wc]) + lDRColour2.G * weights[wc] + BC67_WEIGHT_ROUND) >> BC67_WEIGHT_SHIFT;
temp.B = (lDRColour1.B * (BC67_WEIGHT_MAX - weights[wc]) + lDRColour2.B * weights[wc] + BC67_WEIGHT_ROUND) >> BC67_WEIGHT_SHIFT;
return(temp);
}
internal static LDRColour Unquantise(LDRColour colour, LDRColour rGBPrecisionWithP)
{
LDRColour temp = new LDRColour
{
R = Unquantise(colour.R, rGBPrecisionWithP.R),
G = Unquantise(colour.G, rGBPrecisionWithP.G),
B = Unquantise(colour.B, rGBPrecisionWithP.B),
A = rGBPrecisionWithP.A > 0 ? Unquantise(colour.A, rGBPrecisionWithP.A) : 255
};
return(temp);
}
internal static int InterpolateA(LDRColour lDRColour1, LDRColour lDRColour2, int wa, int waPrec)
{
int[] weights;
switch (waPrec)
{
case 2:
weights = AWeights2;
break;
case 3:
weights = AWeights3;
break;
case 4:
weights = AWeights4;
break;
default:
return(0);
}
return((lDRColour1.A * (BC67_WEIGHT_MAX - weights[wa]) + lDRColour2.A * weights[wa] + BC67_WEIGHT_ROUND) >> BC67_WEIGHT_SHIFT);
}
